TWI819670B - Control device and related display system - Google Patents

Abstract

A control device is configured to control a display panel according to a trigger signal transmitted from an input device to a host. The control device includes a connector unit and a signal capture unit. The connector unit is configured to receive the trigger signal, and transmit the same to the host. The signal capture unit is configured to capture the trigger signal, and control the display panel according to the trigger signal while the connector unit is transmitting the trigger signal to the host.

Description

Control devices and associated display systems

The present invention relates to a control device and a related display system, and in particular to a control device and a related display system for capturing signals from an input device.

In the field of displays, more and more application scenarios require the display screen to respond to input commands in real time. Therefore, how to optimize the response delay of the display to input commands has become an important issue in this field.

The invention discloses a control device for controlling a panel of a display system based on a driving signal transmitted from an input device to a host, which includes a connector unit and a signal acquisition unit. The connector unit is used to receive the driving signal and transmit the driving signal to the host. The signal acquisition unit is used to acquire the driving signal, and when the connector unit transmits the driving signal to the host, it is used to control the panel according to the driving signal.

The invention discloses a display system, which includes a panel and a control device. The control device is coupled to the panel for transmitting the driving signal transmitted from the input device to the host, and while transmitting the driving signal, controls the panel according to the driving signal.

Compared with the prior art, the control device and related display system of the present invention can process delay-sensitive instructions in a more timely manner to enhance user experience.

Figure 1 is a schematic diagram of a display system 10, an input device 11 and a host 12 according to some embodiments of the present invention. The display system 10 is used to display the display signal SD received from the host 12 . The input device 11 is used to generate a driving signal SI and transmit it to the host 12 through the display system 10. The host 12 interprets the driving signal SI and converts it into a display signal SD and transmits it to the display system. For example, the input device 11 is a mouse, and the user clicks the left button of the mouse to generate an instruction to open a window. Then the host 12 interprets the instruction to open the window, and generates the corresponding image of the window opening as a display signal SD and transmits it to the display. System 10.

However, in some application scenarios, the process of interpreting and generating the display signal SD by the host 12 takes a long time, causing the user to feel the time delay from generating the driving signal SI to the display screen. In order to improve the user experience, the display system 10 provided by the embodiment of the present invention can be used to reduce the above time delay.

The display system 10 includes a control device 100, a panel 200, an interface 300 and an interface 400. The input device 11 is coupled to the interface 300 , and the host 12 is coupled to the interface 400 . The display system 10 communicates with the input device 11 and the host 12 through the interface 300 and the interface 400 respectively. The control device 100 is coupled between the interface 300 and the interface 400 for transmitting the driving signal SI to the host 12 and transmitting the display signal SD to the panel 200 .

The control device 100 includes a connector unit 110 and a signal acquisition unit 120 . In some embodiments, the connector unit 110 is a control chip of the interface 300 and can be used to transmit driving signals SI in VGA, USB, USB-C, HDMI and/or DP formats. After receiving the driving signal SI from the interface 300, the connector unit 110 transmits the driving signal SI to the host 12 through the interface 400. While the connector unit 110 transmits the driving signal SI, the signal acquisition unit 120 is used to acquire the driving signal SI. To be precise, when the signal acquisition unit 120 acquires the driving signal SI, it does not affect the operation of the connector unit 110 in transmitting the driving signal SI. In other words, transmitting the driving signal SI to the host 12 by the connector unit 110 and capturing the driving signal SI by the signal capturing unit 120 are two operations that are independent of each other and can be performed simultaneously, so that the signal capturing unit 120 can capture the driving signal SI in real time. .

In some embodiments, the image displayed on the panel 200 needs to respond to the driving signal SI in a timely manner. For example, in a shooting game, the user generates the driving signal SI for turning on the eagle eye mode through the input device 11 . Because the game rhythm of shooting games is fast, if the delay between the image displayed on the panel 200 and the generation of the driving signal SI is too long, the need to turn on the eagle eye mode may disappear (such as the target escaping from the field of view, etc.), thus causing the user to The game performance is reduced and the experience is not good.

Therefore, for some special instructions (such as the above-mentioned driving signal SI for turning on the hawk-eye mode), the signal acquisition unit 120 is used to directly interpret the driving signal SI to generate the control signal SC to the panel 200 so that the panel 200 can perform operations based on the control signal SC. corresponding display. Compared with waiting for the host to interpret the drive signal SI to generate the display signal SD and then transmit the display signal SD to the panel 200 , using the signal acquisition unit 120 to generate the control signal SC to control the panel 200 takes a shorter time and the time delay is less significant. .

In some embodiments, the control signal SC is used to control on-screen display (OSD) settings of the panel 200 .

In some embodiments, the signal acquisition unit 120 is used to identify whether the driving signal SI includes preset data, where the preset data is the above-mentioned data related to special instructions that are sensitive to time delay. When the driving signal SI contains preset data, it means that the input device 11 generates a driving signal SI that requires a more immediate response. The signal acquisition unit 120 interprets the driving signal SI to generate a control signal SC, and uses the control signal SC to control the panel 200 . In contrast, when the driving signal SI does not include preset data, the signal acquisition unit 120 does not interpret the driving signal SI, and therefore does not control the panel 200 .

In some embodiments, the driving signal SI takes effect only after the input device 11 and the host 12 complete a handshake. Therefore, the signal acquisition unit 120 is used to determine whether the handshaking between the input device 11 and the host 12 is completed. When the handover is completed, the signal acquisition unit 120 interprets the driving signal SI. In contrast, when the handshake is not completed or the handshake fails, the signal acquisition unit 120 does not interpret the driving signal SI.

Generally speaking, taking the USB format as an example, a complete transmission from the input device 11 to the host 12 sequentially includes transmitting a token packet from the host 12 to the input device 11, transmitting a data packet from the input device 11 to the host 12, and The host 12 transmits the handshake packet to the input device 11 . The handshake is completed when all three packets have been transmitted. In some embodiments, the signal acquisition unit 120 acquires the flag packet, the data packet and the handshake packet, and after the handshake is completed, interprets the data of the data packet (corresponding to the driving signal SI), and then generates the control signal SC.

In some embodiments, the driving signal SI is an image signal, and the signal acquisition unit 120 is used to determine whether a specific object appears in the image in the driving signal SI. When the specific object appears in the image, the signal acquisition unit 120 generates The control signal SC controls the panel 200 so that the panel 200 performs corresponding operations accordingly. For example, when a person suddenly walks into the field of view of the video lens through the image signal (corresponding to the input device 11) generated by the video lens (corresponding to the input device 11), a figure breaking into the screen will be generated in the image signal. The signal acquisition unit 120 generates the control signal SC to the panel 200 according to the sudden appearance of a human figure in the screen, and controls the panel 200 to change the originally displayed background pattern. It should be understood that the various operations of the panel 200 controlled by the control signal SC are only examples, and the present invention is not limited thereto.

In addition, the present invention is not limited to various input devices 11. In addition to the above-mentioned mice, keyboards, lenses, etc., it is also not limited to joysticks, various sensing devices, or other devices with signal generation functions.

In some embodiments, the connector unit 110 and the signal capture unit 120 are manufactured on the same chip. However, the present invention is not limited thereto. Various ways of composing the connector unit 110 and the signal capture unit 120 are considered and considered by the present invention. within the scope. For example, in other embodiments as shown in FIGS. 2A to 2D , the signal acquisition unit 120 and other units are manufactured on a different chip than the connector unit 110 .

2A to 2D are schematic diagrams of the control device 100 according to other embodiments of the present invention. Generally speaking, the panel 200 needs to be equipped with a scaling control (scaler) unit 130 to adjust the display signal SD so that it can match the specifications of the panel 200 .

In some embodiments, the scaling control unit 130 is provided in the control device 100 . The scaling control unit 130 can be connected in series with the connector unit 110 between the interface 300 and the interface 400 as shown in FIG. 2A and FIG. 2B , wherein the signal acquisition unit 120 acquires the driving signal SI through the scaling control unit 130 . In the embodiment of FIG. 2A , the signal acquisition unit 120 and the scaling control unit 130 are disposed on the same chip. In the embodiment of FIG. 2B , the signal acquisition unit 120 and the scaling control unit 130 are disposed on different chips, and are coupled to the connector unit 110 through the scaling control unit 130 .

The scaling control unit 130 may also receive the driving signal SI and the display signal SD through the connector unit 110 as shown in FIG. 2C and FIG. 2D. In the embodiment of FIG. 2C , the signal acquisition unit 120 and the scaling control unit 130 are disposed on the same chip. In the embodiment of FIG. 2D , the signal acquisition unit 120 and the scaling control unit 130 are disposed on different chips, and are coupled to the connector unit 110 through the scaling control unit 130 .

In an alternative embodiment, the connector unit 110, the signal acquisition unit 120 and the scaling control unit 130 are disposed on the same chip.

The foregoing description briefly presents the features of certain embodiments of the present invention, so that those with ordinary skill in the art to which the present invention belongs can more fully understand the various aspects of the present invention. It will be obvious to those with ordinary skill in the technical field to which the present invention belongs. They can easily use the content of the present invention as a basis to design or modify other processes and structures to achieve the same purpose and/or achieve the same purpose as the embodiments here. advantages. Those with ordinary knowledge in the technical field to which the present invention belongs should understand that these equivalent embodiments still belong to the spirit and scope of the present invention, and various changes, substitutions and modifications can be made without departing from the spirit and scope of the present invention. .

10:Monitor system

11:Input device

12:Host

100:Control device

110: Connector unit

120: Signal acquisition unit

130:Zoom control unit

200:Panel

300:Interface

400:Interface

SC: control signal

SD: display signal

SI: drive signal

The various aspects of the invention can best be understood upon reading the following description and accompanying drawings. It should be noted that, in accordance with standard practice in the art, various features in the figures are not drawn to scale. In fact, the size of certain features may be intentionally exaggerated or reduced for clarity of description. Figure 1 is a schematic diagram of a display system, an input device and a host in some embodiments of the present invention. 2A, 2B, 2C and 2D are schematic diagrams of a control device in other embodiments of the present invention.

10:Monitor system

11:Input device

12:Host

100:Control device

110: Connector unit

120: Signal acquisition unit

200:Panel

300:Interface

400:Interface

SC: control signal

SD: display signal

SI: drive signal

Claims (10)

A control device used to control a panel of a display system based on a drive signal transmitted from an input device to a host, wherein the control device is provided outside the input device and the host, and includes: a connector unit, to receive the drive signal and transmit the drive signal to the host; and a signal acquisition unit to acquire the drive signal, and to use the connector unit to transmit the drive signal to the host according to the The driving signal controls the panel. For example, the control device of claim 1, wherein after the input device and the host complete a handshake of transmitting the drive signal, the signal acquisition unit controls the panel according to the drive signal. Such as the control device of claim 2, wherein when the input device and the host do not complete the handshake of transmitting the drive signal, the signal acquisition unit does not control the panel. For example, the control device of claim 1, wherein the format of the driving signal is one of VGA, USB, HDMI or DP. The control device of claim 1, wherein the signal acquisition unit is coupled to the connector unit and used to acquire the drive signal from the connector unit. The control device of claim 1 further includes: a scaling control (scaler) unit, wherein the driving signal is further transmitted to the host through the scaling control unit, and the signal acquisition unit is coupled to the scaling control unit for from The scaling control unit captures the driving signal. For example, the control device of claim 1, wherein the signal acquisition unit is used to identify the drive signal, and when the drive signal contains a preset data, the signal acquisition unit controls the panel based on the drive signal. For example, the control device of claim 7, wherein when the driving signal does not include the default data, the signal acquisition unit does not control the panel. Such as the control device of claim 1, wherein the signal acquisition unit controls an on-screen display (OSD) setting of the panel according to the drive signal. A display system includes: a panel; and a control device coupled to the panel for transmitting a driving signal transmitted from an input device to a host, and while transmitting the driving signal, according to the driving signal Control the panel, wherein the control device is disposed outside the input device and the host.